Evidence map›Paper›PMID 25477955›Full record

ReviewGastroenterology research and practice2014

Does Preoperative Radio(chemo)therapy Increase Anastomotic Leakage in Rectal Cancer Surgery? A Meta-Analysis of Randomized Controlled Trials.

Changjiang Qin, Xuequn Ren, Kaiwu Xu, Zhihui Chen, Yulong He, Xinming Song

Abstract readReview
In one paragraph

Review in Gastroenterology research and practice, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Review
  7. Diagnosis of Anastomotic Leak.Clinics in colon and rectal surgery · 2021
    Review
  8. Article
  9. Article
  10. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Changjiang QinDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Zhongshan Second Road, Guangzhou, Guangdong 510080, China ; Department of Gastrointestinal Surgery, Huai He Hospital of Henan University, Kaifeng, China.
Xuequn RenDepartment of Gastrointestinal Surgery, Huai He Hospital of Henan University, Kaifeng, China.
Kaiwu XuDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Zhongshan Second Road, Guangzhou, Guangdong 510080, China.
Zhihui ChenDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Zhongshan Second Road, Guangzhou, Guangdong 510080, China.
Yulong HeDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Zhongshan Second Road, Guangzhou, Guangdong 510080, China.
Xinming SongDepartment of Gastrointestinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Zhongshan Second Road, Guangzhou, Guangdong 510080, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective. Preoperative radio(chemo)therapy (pR(C)T) appears to increase postoperative complications of rectal cancer resection, but clinical trials have reported conflicting results. The objective of this meta-analysis was performed to assess the effects of pR(C)T on anastomotic leak after rectal cancer resection. Methods. PubMed, Embase, and the Cochrane Library were searched from January 1980 to January 2014. Randomized controlled trials included all original articles reporting anastomotic leak in patients with rectal cancer, among whom some received preoperative radiotherapy or chemoradiotherapy while others did not. The analysed end-points were the anastomotic leak. Result. Seven randomized controlled trials with 3375 patients were included in the meta-analysis. 1660 forming the group undergoing preoperative radiotherapy or chemoradiotherapy versus 1715 patients undergoing without preoperative radiotherapy or chemoradiotherapy. The meta-analyses found that pR(C)T was not an independent risk factor for anastomotic leakage (OR 1.02, 95% CI 0.80-1.30; P = 0.88). Subgroups analysis was performed and the result was not altered. Conclusions. Current evidence demonstrates that pR(C)T did not increase the risk of postoperative anastomotic leak after rectal cancer resection in patients.

Identifiers

PMID25477955
PMCPMC4244918

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.